Medical light assembly



FIG. 1 is a perspective view of my design for a photo dynamic therapy apparatus.

FIG. 2 is a perspective view of my design for a photo dynamic therapy apparatus.

FIG. 3 is a side elevational view of my design for a photo dynamic therapy apparatus.

FIG. 4 is a top plan view of my design for a photo dynamic therapy apparatus; and,

FIG. 5 is a front elevational view of my design for a photo dynamic therapy apparatus. 

The ornamental design for photo dynamic therapy apparatus, as shown and described. 